Home / 13,230.09-18,257.87-7,565.76

Finding the Fourth Proportional to 13,230.09, 18,257.87 and 7,565.76

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Solution

The fourth proportional to 13,230.09, 18,257.87 and 7,565.76 is: 10,440.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,230.09 : 18,257.87 = 7,565.76 : x
  2. Step 2: Convert to fraction form
    13,230.09/18,257.87 = 7,565.76/x
  3. Step 3: Cross multiply
    13,230.09x = 18,257.87 × 7,565.76
  4. Step 4: Simplify right side
    13,230.09x = 138,134,662.53
  5. Step 5: Solve for x
    x = 138,134,662.53/13,230.09
  6. Step 6: Final answer
    x = 10,440.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.